Dahlia 'Black Jack'
Orders placed until 29 February 2025
You can expect your order in February/March 2025
Orders placed 1 March - 15 April 2025
You can expect your order in March/April 2025
Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days
UK orders over £50
Free shipping
UK orders under £50
£4.99
Northern Ireland orders under £50
£5.99
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Description
Lovers of deep, dark, velvety blooms will simply not be able to resist the dramatic Dahlia 'Black Jack'. One of the darkest, near-black Dahlia varieties available, 'Black Jack's sensational colour is intensified by the striking cactus dahlia shape – with a wealth of spiky petals radiating out from its almost-black heart. And if the flowerheads weren’t eye catching enough, this variety features a really unusual foliage colour, rarely seen on a dahlia – dark green leaves are contrasted by deep red veining and stem!
The buds, too, are large and sculptural – so with its statuesque height, Dahlia 'Black Jack' is hard to beat for providing architectural interest in your garden. Grow it alongside silvery foliage in a stylish, contemporary scheme, or contrast with brighter colours to add real depth to your summer display.
Key features
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Good for cutting
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Comes back every year
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Thrives well in full sun
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Packed in paper bags
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Low maintenance
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May need winter cover
Specs & details
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Botanical name
Dahlia 'Black Jack'
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Flower colour
Near-black, red
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Tuber size
1
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Established height
1.2-1.5m
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Established spread
50-70cm
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Plant spacing
5 tubers per m2
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Leaf colour
Bronze, green
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Habit
Upright
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Life cycle
Perennial
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Hardiness
Half hardy
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Years to establish
1st year
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Sunlight
Full sun
Partial shade -
Position
Sheltered
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Suitable for
Large containers
Borders
Gravel gardens
Coastal gardens
Cottage gardens
Low maintenance gardens
Cut flower gardens -
Soil acidity
Any
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Soil moisture
Free draining
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Soil type
Loam
Sandy
Multipurpose compost
Loam-based compost -
Growing skill
Easy to grow
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Scented
No
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Pollinator-friendly
No
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Mouse resistant
No
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Rabbit resistant
No
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Deer resistant
No
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Toxicity
No report
Plant calendar
| Jan | Feb | Mar | Apr | May | June | July | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
- Planting
- Flowering
Useful information
-
Orders placed until 29 February 2025
You can expect your order in February/March 2025Orders placed 1 March - 15 April 2025
You can expect your order in March/April 2025Orders placed 16 April - 15 May 2025
You can expect your order within 10 business days
Perfect companions
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